Home / 215,512.16-297,406.65-124,920.62

Finding the Fourth Proportional to 215,512.16, 297,406.65 and 124,920.62

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Solution

The fourth proportional to 215,512.16, 297,406.65 and 124,920.62 is: 172,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,512.16 : 297,406.65 = 124,920.62 : x
  2. Step 2: Convert to fraction form
    215,512.16/297,406.65 = 124,920.62/x
  3. Step 3: Cross multiply
    215,512.16x = 297,406.65 × 124,920.62
  4. Step 4: Simplify right side
    215,512.16x = 37,152,221,623.09
  5. Step 5: Solve for x
    x = 37,152,221,623.09/215,512.16
  6. Step 6: Final answer
    x = 172,390.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.